package com.ynny.demo01;

public class Circle {
    private double radius;
    public Circle(){
        this.radius = 1;
    }

    public double getRadius() {
        return radius;
    }

    public void setRadius(double radius) {
        this.radius = radius;
    }
    public double findArea(){
    double s = 3.14 * radius * radius;
        return s;
    }
}
